Food-handling apparatus



H. L. JOHNSTON El' AL 1,767,000

- June 24, 1930.

FooD HANDLING APPARATUS ,3 Sheets-Sheet 1 Filed Aug. 2, 1927 "a, "E u 3 JW A l "M ATTORNEYS.

IN VEN TQS.

June 24, 1930. H. l.. JOHNSTON ETAL 1,767,000.

FOOD HANDLING APPARATUS I med Aug. 2,' 192'1 :s sheets-sheet 2 June 24, 1930. I H, L, JOHNSTON Er AL 1,767,000`

FOOD HANDLING APPARATUS Filed Aug. 2, 1927 3 Sheets-Sheet 5 M s JNVENTORS. l BY o huwh,

A TTORNEYS Patented June 24, 1930 narran stares PATENW Price HE-RBERT L. JOHNSTON AND' DAVID-A. MEEKER, OF TROY, OI-IO, ASSIGNORS TO I-IOBART MANUFAGTURNG COMPANY, OF TROY, OHIO, A COREORATION OF OI-IIIO` noon-HANDLING APPARATUS 4 Application led August 2, 1927. Serial No. 210,146.

This invention relates to food handling apparatus.

One ofthe principal objects of the invention is the provision of an improved candy pulling mechanism; and particularly such mechanism adapted to be detachably connected to an operating device, such as a food handling machine. n

Another object of the invention is the provision of a novel candy pulling mechanism having a pluralityof vcandy pulling arms revoluble in intersecting circles, and embodying supporting and driving meanslocated at the saine side of the various arms. n

A furthe-r object is the provision of an attachment unit of this character embodying two U-shaped candy pullers one of which is attached to a driven shaft ata point on the bight portion of the U `and the other having :i an extensionA of one of the legs of the U which is fastened to shaft.

' till further objects and advantages of the invention will be apparent from the followa corresponding driven ing description and kfrom the drawings.

In the drawings Fig. 1 is a plan view, partly in section, of an attachment unit embodying the present invention; j

Fig. 2 is an elevational view of theattachment shown in Fig. l'showing one side of the housing removed; j

Fig. 3 is `adetail viewpartly in section showing the driving connection between the drive shaft and the drive sprocket;

Fig. 1-is a side elevation of the attachment, with the housingremoved, and Y Fig. 5 is a side elevation of a food handling machine with the candy pullingatta'chment in place. i .Y

Referring more particularly to the drawings by reference numerals in which corresponding numerals designate like parts in the various views, the candy pullingattachment unit, shown in Fig.1,"'embodies a support having at its rear end a hubf11, these two parts rotatably suporting a drive shaftVV 12. The drive shaft supports and rotates -a drive sprocket gear 14. On opposite sides of the support 10 are the pillowblocks 16"andj17 which rotatably support Athe short driven shafts 18 and 19 respectively which extend parallel to and on opposite sides of the drive shaft 12. Two driven sprocket gears 21 and 22 are mounted respectively on the short shafts 1S and 19 andare fastened to these shafts by set-screws 23 and keys 28 asl shown in Fig. 4. rlhe pillow blocks are'bifurcated l so as to provide opposing bearing sections'24 and 25 between which the driven sprocket gears are located. The pillow blocks are fastened in an adjustable manner tothe support 10 by means of through bolts 26, 2T, 28 and29which extend through vertical slots`I 30 inthe support soas to fasten thetwo pillow blocks on oppositek sides thereof in an f* adjustable manner permitting the vertical movement or adjustment of the pillow blocks in relation to thesupport. A single drive chain 31 extends partlyaround the drive and driven sprocketV gears, and this chain may thus be tightened to compensate for wear of theV chain.` It willbe obvious that a Vvertical downward movement of the pillow blocks in relation to the support will causev the chain to be tightened and after the tightness is suitably adjusted in the driving v chain, the through bolts 26 to 29'inclusive are tightened "in place andthe various parts are thus held rigidly together vin their-proper positions.

The-driving connection between the drive V"shaft 12 `and thev short driven shafts 18 and 19 is enclosed by a two-part-housing 35 havmg .sections 36 and V37 attached together alo-ng a central plane by means'of the fastening bolts 38." 'These twosections are attached in any suitable manner to the support 10.VV Q 1 The housing Vsection'? is provided with two holes inthe forward side thereof through which the two shafts 18 and 19 project. |The shaft 19 4projects, a Vshort ways frointhe sidev `of `thehous'ing` and supports a candypulle'r` 40 'whichembodies the two; pulling arms 41 and 42 anda-,connecting baril?, which together forma vU-shaped member. The arm 42 projects inwardlyy as shownrat V4:4@ vand this inward projection extends transversely through an end portion oftheshaft 19 and .l isheld firmly in Aplace by a fastening nut l5 'l which fastens von the threads 46 lwith which the end of this driven shaft is provided. The nut thus holds the U-shaped candy puller arm in position so that it may rotate with the drive shaft and cooperate with the adjacent candy puller arm 47 which is attached to the driven shaft 18. This candy puller 47 is also of general U-.shape buty the connect-ing bar 48 which connects the two arms 49 and 50 is itself fastened to the driven shaft 18. The

vconnectionbetween the puller 47 ,andl shaft 18 isshown inlig. 4, the shaft having a slot 52'which is elongated as shown and of a width to neatly receive the diameter of .the .rod of4 which the puller 47 is formed. The slot is elongated as shown so that-the bend 58 ofthe puller may be passed throughthe slot to permit the assembly or disassembly ofthe candy puller with the driven shaft 18. After the arm 49, and the bend Y53 of the candy puller have'been passed through the elongated slot the bar148 is moved to its correct vposition in the slot and a filler block 54 having a. forzward side 55 curved to fit the rear of the bar 48 is inserted within the slot. vThe fastening` nut 56 is then threaded on the screw threads 57 ont .the end of the shaftandagainst the candy pullerarm toprevent the movement ofthe arms in relation tothe driven shaft 18.y The bar 48 is cutaway to providea Hat bottom recess, asshown at 58,-adjacent the portion which is fastened to thedriven shaft. This flat .bottom of ,the recess cooperates with the flat face of the lock nut .5G-,and this cut away portion is of.k such `extent as to receive thelock nut thusI providing shoulders `59 whichhold the bar against sliding. The fiat portion holdsthe otherwise round bar against turning. zAs is evident from'Figl of the drawing, the part 44 of the other candy puller arm'i's .also. pr ovided with aflat bottom recess which cooperates withthe. nut 45 to lock this arm against botl1,1'otar y and transverse motion. The fasteningnut-V 56 thus bearstightly against thefla-ttened portion 58 of lthe candy puller to irmlyfix the latter iirposition on `the shaft so that it-may cooperate witlrthe opposing candy puller .40 in an obvio-us manner.

The drive shaft12, as showninFig. 3, has one end provided witlndriving surfaces 60 by means of whichpoweris supplied to cause the-rotation 0f the shaft. Between its ends `the shaft rotatably supports the drive sprocket 14, which is mounted on a reduced portion 61, of the shaftandfbears against the shoulder 62 so thatI it is preventedl fromnioving towards the left as seen -in Fig. 3.` The drive sprocket 14 is provided with lout out jaw notches in which iitthe jaws64 of a sleeve 6 5 which has an inner bore fitting theredueed portion (i1 of the shaft so.th at `agrunningiitis provided between these two parts. Y The sleeve [65' f iredto the vshaft `by a drive pin 66, preferably tapered, l which,extends through both sides of the Asleeve ,to fix the same on the shaft and hold the drive sprocket fixed in place on the shaft. It is thus apparent that a power is supplied to the end of the shaft through the drive surfaces 60, the shaft 12, acting through the pin 66 and the sleeve 65 will cause the sprocket wheel 14 to be rotated with the shaft, the pin 66 providing a connection which may be shea-red in case excessive strains are imposed upon the machine parts. Tf-the pin is shea-redit will be obvious that the drive sprocket 14 will remain stationary, the shaft 12 merely rotating freelywithin the latter.

The attachment unit just described is adapted to be used in conjunction with a food handling machine as shown in Fig. 5. This machine is of the motor driven type-and, as shown, embodies a pedestal 70 extending upwardly from the base 71.v The pedestal supl.ports an electric motor 72which is .in driving connection ywith suitable beating, stirring or cuttingr apparatus designated generally 73, the bowl or container 74. holding the food whichisl being. loperated upon. .This food handling machine may alsobe .provided with other 4devices of a different. character from `the apparatus78 adapted to operate in various vmanners upon/diiferentt-ypes of-food. The machine, however, is providedwith-an attachment socket 75 Hconveniently located and fastened on the side of the main housing 811of the ,machine The ,candy -pullingunit is adapted to be quickly.and-icletacliably fas- -tened tothe soeket75; and'for this-purpose the ysocket is provided with v.an `internal ltaper 77 .in whichfthe itapered hub F11 of the candy pulling attachment fits. ,-Tfhe support 10of.this attachment has atop locating pin 78 which fitsin a` corresponding hole tatgthe top .of the Asocket to prevent rotational move-mentsrof the support and of the .other stationary portions Aof the attachmentunit. Suitable/means -such as a thumb-screw 76 maybe used to fasten thehubportionllrirmly in place within the socket 7 5.v Then the hubportion isrin operative position, fastened within the= socket,the end ofthedrive. shaft 12 will extend into: a driving socket onthe endof one ofathe. motor operated shafts 80 Withinthemain housing or Vhile the form of apparatus herein de-V scribed constitutes a perferred embodiment of the invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein Without departing froml the scope of the invention Which is defined in the appended claims.

Vvlhat is claimed is: y

1'. `A candy-pulling apparatus of the character described comprising a drive shaft, a supporton which said drive shaft is rotatably mounted, a pair ofshort driven shafts in driving connection With said drive shaft, supporting means forsaid short shafts, means for adjustably fastening said supporting means on said support to compensate for Wear vof said driving connection, and U-shaped candy pullers attached to the end portions of said short shafts. Y e

2. Food-handling apparatus ofthe character described comprising a drive shaft, a support inkvvhich said drive shaft is rotatably mounted, a hollow housing supported by said support, a pair of short driven shafts Within said housing, a gear on-each of said short shafts and on said' drive shaft, a chain interconnecting said gears for lsimultaneous rotation, said chain heing'enclosed by said housing, and candy-puller arms on eachof said driven shafts. i

' 3. A candy-pulling unit adapted to be detachably connected toa motor driven foodhandling machine comprising a portable support, a drive shaft rotatably mounted in said' support, a pair of spaced driven shafts connected to said driving shaft and mounted `on said support, cooperating food-handling arms fixed to said driven shafts andppositioned both at the same side of said support, said drive shaft and said support having provi-V sions for quick detachable connection respectively to a power'shaft and to the frame of a foodhandling machine. Y Y f 4. A candy-pulling attachment unit adapted tobe detachably connected to a'food-hamV dling machine'comprising a stationary support, a drive shaftrotatably mounted Within Y said support, a pair of spaced driven shafts mounted in said vsupport parallel to said drivf ing-shaft, gears on `said drive and driven shafts, achain interconnecting said gears and a sectional 'enclosing housing attached to said support andfenclosing said gearsand chain, means on one 'end of said drive shaft and o n the adjacent portion of said support for .fastening said drive shaft'and isaid support i to corresponding rotatable Aand fixed members of a food-handling machine, and candy-puller arms on said driven shafts.

5. A candy-pulling attachment unit adapted to be detachably connected to and operated from a food-handling machine compris ing a stationary support, a drive shaft rotatably mounted in said support having an eX- posed end, apair of spaced driven shafts mounted parallel 'to said drive shaft, interconnected drive gears on said drive and driven shafts, a two-part enclosing housing enclosing said drive gears, pulling arms on said driven shafts, means on the exposed end of said drive shaft and on the adjacent por- .tion of said support for fastening said drive shaft and said support to corresponding rotatable and fixed members cfa food-han-` dling machine, andl Wear-compensating means for adj ustin v one of said shafts, and a secondpair of arms only one of which is fastened directly tothe g said driven shafts in lrelation to said drive shaft.

other of said shafts, said secondpair of arms being both spaced from their shaft axis and attached together so that they arm Which is directly fastened forms a drivemeans for the other.

7. In a food-handling apparatus of the character described, a pair of driven shafts, means forV driving ,said shafts, a U-shaped piece attached at the bight portion of the U to an end part of one of said shafts, and a second U-shaped piece having an invvard eXtension atthe free end of one arm thereof Which is attached to an end part of the other of said shafts. s

18. Foodfhandling apparatus ofthechar acter described comprising a detachable portable unit adapted to be detachably affixed to a motor- `driven food-handling machine and comprising i support, attaching means lfor fastening said support in place, a drive shaft `rotatably mounted on said support and havingan exposedendfadapted to be moved into engagement with a driven member ofv said Imachine, a housingsupported by and .enclosing said support, vand food-handling meml bers adapted to be driven from saidshaft.y

9. A candy-pulling ,unit comprising a sup'- port, adjacent drivenshaftsmounted on said support, drive meansfor said driven shafts, and rotatable substantially U-sh`aped` candy` pullers extending fromeach driven shaft so as to be revolved .bywsaid-driven shafts and positioned both atithe same side of said supf port in overhangingrelationtherewith, each. candy puller having apair of arms spaced v diiferentdistances fromthe axis of the shaft on which they are mounted sothat the arms all move in circular paths, With fthe, arms in' intersecting circles.

spaced fartherfrom the shaft axes .traveling i i 10. In apparatus of the character described, a driven shaft exteriorly threaded at one end and having a closed slot therein spaced from the end thereof, a lock nut threaded on the exterior of said driven shaft, and a candy-puller arm removably' positioned within said slot and locked therein by said nut, said arm having a cut away portion on the exterior of said slot to receive said nut when in locking position.

11. In apparatus of the character described, a drive shaft, a driven shaft exterior'- ly threaded at one end and having a closed slot therein spaced from the end thereof, a lock nut threaded on the exterior of said driven shaft, and a round candy-puller arm removably positioned within said slot and locked therein by said nut, said larm being recessed 'on the exterior of'said slot to receive the nut, the said recessed portion providing a lfiat face for cooperation with the nut to lock the arm against transverse movement and rotary movement.

12l In apparatus of the character described, a drive shaft, a driven shaft threaded at one lend and having a closed slot therein spaced from the end thereof to receive'a sharply curved candy-puller arm, said slot being ofsucient depth to permit the sharply curved portion of the arm to be inserted therethrough, aplock nut threaded on said 'driven shaft, and a candy-puller arm removably positioned within said slot, and a fillet piece positioned within said slot behind Y said arm, said arm being recessed to receive the lock nut, said recessed portion being provided with a fiat face against which-the nut may be turned to urge the said arm against the fillet, to lockthe arm against transverse movement and rotary movement thereof.

18. Food-handling apparatus of the character described comprising a support, spaced shafts mounted therein, means for driving said shafts, and acandy pullerl on the end of each shaft extending from said shafts away from the same side of the'support,each candy puller 'comprising a pair of arms 'spaceddifferent 'distances from their shaft axis so all the'arms move in circular paths, with the arms spaced fartherfrom the `shaft ,axis traveling in intersecting paths. Y v 14. Food-handling apparatus of the character describedjcomprising a support, spaced shafts mounted therein, m'eans for driving said shafts at 'the same speed and in the same direction, and a pair ofcandy-puller'arms on each shaft extending from the shaftsy away from thesame side lfof the support, t-he pair of arms `of each shaft being spaced' different distances from their shaft vaxis so qall the arms move in circular paths, 'with the arms spaced farther from the shaft4 axes traveling in intersecting paths and the two, arms spaced closer to the shaft axes being movable'in ,non-intersecting paths. i

and a pair of candy-puller arms of each shaft extending from said shafts away lfrom the same side ofthe support, the Apair of arms of each shaft being spaced diiferent distances from their shaft axis so all the 'arms move in circular paths, with the arms spaced farther vfrom the 'shaft axis traveling in intersecting circles. a A

16. Food-handling apparatus 'of the character described comprising a drive shaft, a support therefor, driven shafts, l'means adjustable'on said support for holding. said 'driven shafts, 'a single drive chain operatively interconnecting the said shafts, candy pullers on said driven shafts extending from said support, said means being adjustable downwardly to tighten said chain so that gravitational pull on said means moves vit to properly tension the chain, and 'provision for holding said means in adj usted position.

17. In apparatus 'of the character described,v a drive shaft, a driven shaft having a closed 'slot therein spaced from y'the end there- Y0f,'ani1`1tegral substantially U-'shaped candy 4puller extending through the closed lslot in said driven shaft, 'said slot being 'of sufficient depth to permit said U-shaped candy puller to be inserted within the slot 'until the bight portion thereof is vpositionedwithin the slot, and means for locking the Abight portion of said candy puller in position against movement in respect tojsai'd shaft.

18. Food handling apparatus 'of the char.- acter described comprising a support, a drive shaft mounted therein, `driven shafts one on each side of'said drive shaft, a block supporting ea'ch driven shaft and adjustably mounted on vsaid support, candy pullers on said driven shafts, each candy puller having two arms spaced' die'rent distances from their shaft vaxes so that all the arms move incircular paths with the arms spaced farther from the shaft axestraveling inlintersecting circles,

and a single drive chain interconnecting said drive. shaft and both 'of said driven shafts, the adjusting v means for said driven shafts permitting 'adjustment toV take upv slack in the drive chain while maintaining the center lines of the drivenshafts'at substantially the same distance apart.

` n 19; A candy pulling apparatus of the character described comprising a driven shaft having an externally Vthreaded outer end with a transverse closed slot therethrough adj acent but spaced from the outer end thereof, an integral substantially U-shaped candy puller inserted' within said closed slot until its bight vportione'xtends through said slot, said vslot being substantially larger in the direction of the length of the U than the said bight portion, a ller within said slot, and a looking member threaded on the externally threaded outer end of said driven shaft for locking said candy puller inv position against the filler block Within said slot to prevent transverse movement and rotary movement of the candy puller Within said slot.

In testimony whereof We hereto aliix our signatures.

HERBERT L. JOHNSTON. DAVID A. MEEKER. 

